Door construction



Aug. 31, 1943. J. I. BYRNE 2,328,325

DOOR CONSTRUCTION File d April 14, 1941 S,Sheets-Sheet 1 llIIIIIIIII INVENTOR. JULIUS I. BYRNE 9 J. 1. BYRNE 2,328,326

DOOR CONSTRUCTiON Filed April 14, 1941 3 Sheets-Sheet 2 2a 4a 23 58 4 21 49 I 2 43 3 WW/ '5 j'l j INVENTOR. JULIUS I. BYRNE I ATTORNEYS 'Aug. 31, 1943. J. I. BY RNE DOOR CONSTRUCTION Filed April 14, 1941 3 sheets sheet 3 INVENTOR avoid interference.

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Patented Aug. 3i, 1943 ii UNITED STATES PATENT OFFICE 2,328,326," noon coNs'rnUc'rIoN Julius LByrne, Detroit, Mien. j Application April 14; 1941, Serial No. 333,539 n aoiaims. (o1. mas-51y Theinvention relates to doors and refers more particularly to doors of thesliding type operable by linear members.

In doors of the sliding type comprising apluralityof door members or leaves operable by a single linear member, it is desirable atQtimes to dlsconnectone or moreof the door members or leaves from the linear member for movement manualy. I r

i The mvention has for one of its objects to provide an improved structure by means of which the door members or leaves may be readily connected to or disconnected from the linear member.-- I i The invention has for other objects to provide an improved construction or clampbetween the linearmember and each doorrnemberor leaf; to provide means foroperating the clamp from a zone remote from the clamp; and to provide "the clamp with guide meansengageable with a support for anintermediate portion of the-linear member to deflect the support and to thereby These and other objects of the inventionwill become apparent from the following description, taken in connection with the accompanying drawings, in which w 3 o w w 1 Figure l is a side elevation illustrating a door Figure 2 is across section on the line 2- 2 o1 ural: q

Figure 3 is 'a operating system; w or l I t Figure 4 is an inside elevation of a portionof t e d Figure -5 is an enlargement of a portion of ieu Figure fiis atop plan vieworl igurefi; Figure 7 is an end view; partly in section, c

Figure 5; 1; l l l y Figure 8 is a or 55 section on the line 8il of Figured p w w Myyinvention isapplicable to doorsof the slid ing type' operable by linear members. While the doors are adapted to be used. in various structures, such as airplane hangars, factories and warehouses, I 'have illustrated in the present instance an airplane hangar doortwhich closes one half of the entrance opening and comprises the door members or leaves ll, 2, 3 and l of the same widths. H i a t The doormembersor leaves arepreferably arranged withinwthe building in upright position parallel to each other and-also transversely ofiset with respect to each othersothat they may be moved relatively to each other across the en trance opening. When in closed positions, the door members or'leaves are relatively extended andtheir adjacent ends normally overlap. When in open positions,the door members or leaves are arrangedside by side, or juxtaposed, and their: corresponding ends are in substantial alignment in a plane at right anglesto their paths of moveber or lear is provided at its top with the pairs.

of rollers 6 engagingthe depending stems of the if-beams I whereby the topof each doormember diagrammatic viewjof the door series of sheavesil; and I0 and is connected at 7 one end to the anchor. H and attthe other end to the'drum l2. The linear member, as shown is a continuous flexible cable which from its point of connection'tq the anchor II is alternatively reeved overthe sheaves 9 and Ill." The upper portions I3Mof.the cable are located above the-T-beams l and the plate l4 while the lower portions l5oi the cable are located below the plate and preferably midway between the depending flanges of the T-beams 1. There are four lower portions in the present instance with each connectedto a different door member! or leaf when'in operating condition.

The fsheavesJllI are stationarily mounted on the framework of the building and the sheaves 9 and the drum l2 are movably mounted on the framework of the building. More particularly, the sheaves 9 and the drum 12' are mounted on the carriage 16 which is movably mounted on the framework of thebuilding and is reciprocable through a path prefer ably parallel to the paths of movement of the door members or leaves.

. compensate for the extent of .cable either wound upon or unwound from the so that the cable is maintained tautjthroughout its length at all times.

i ,The construction as thus far described, is the depending stem of the T-beam l and the transverse part 2! extending over the door member,

or leaf. Suitable means, such as the screwsYZL.

extending through the plate secure the bracket to the door member orleaf. 2| has integrally spaced top and bottom walls The transverse part 23 and 24, respectively, and the grip portion 25, I

which latter is located at the free edge of and integral with the bottom wall. The grip portion is fori ned with the semi-circular face 26. for em gaging-a lower portionit of the cable 8. The grip portion at its top tbeflange 2-1 which ext-ends toward and is in substantially the plane of the :top wall 23. This flange, however, termiates at a distance spaced from the, adiacentedge of the top wall suflioient to readily permitv the cable to pass therebetween. To cooperate with the grip portion. to connect the cable positively to the bracket and thm to the door member or leaf, I haveprovided the gripmembcr 28 which isin the nature of .a barhaving-along one longie' tudinal edge: the semiecireul'ar 'liace 29 for criaging thes'ide of the. cable oppositelthat engaged by'thefsemi ciroular face 2.6.. The. grip member is supported on the side portions 30. of the bottom wa1l24 and has the lateral pro ections 3| which extend from the. edge opposite the semi circular iace '29/to slidably engage the top and bottom walls zs'i abdv 24 and also'the end, Walls 32. betw en the-ton andbottom walls.

The. grip m mber is secured to the. link ttywh hasthe basesi and the iurcationsas, Thebase is f rmed with the. longitudinally extendin slots 36 of aisize o receive the bol s 3' '"whi h l extend through the, grip member a dserve to adiusliablyjsecure the gri memberto the link. The. iilrcations are provided with axially aligned holesgfor receiving: the in 38. which exends hrou h the. linkta'iand pivotallysecures the two, linksr33 and." 39 together. The link- 39 is, pivotally connected at s pposite end by the ping lll. to the reach rod llwhich extends longi tudinally of the plate 26'. The link, 39 is also pivotally connectedsubstantially:midwaybetween its ends by the pin .42; to an end of thelink- 43 having the furcations td" adapted -tofreely embrace the link 39,}. The furcations 44- are pivotal'ly. connected to; thetra-nsverse part Z-Iby the axially aligned pins 45' which extend through the lugs 46 integral withthe transverse part. The pins are'preferably fixedly secured-to the lugs by suitable means, such as the setscrews 41.

The construction is such that the clamp for coupling the cable to a door member or leaf is toggle operated, the links 39 and 43 forming the toggle; It will be noted that the pivot pin 42 occupies a position with its axis above the line connecting-the axes of the pivot pins 38 and t5 when the; reach rod N has been moved to its uppermostposition to move the grip-member to clamping position. As a result, the operating mechanism i's'locked from accidental disengagement. 1

For the purpose-of normallylimiting the-movement' of the grip member away from the grip portion so that the cable cannot become accidently disengaged from the clamp, the link 33 has the upright flange 48 which is normally engageable with the edge of the top wall 23 when the grip member is moved away from the grip portion.

However, to enable initial engagement of the cable with the clamp, or to enable its replacement, if desired, the link 33 may be permitted to lower by releasing the nuts on the bolts 31 sufficiently to allow the flange 43 to clear the top wall 23 and pass therebeneath. To enable the lowering ofthe link and also to enable operating the linkage, the bottom Wall 24 is formed with a central slot or opening.

For the purpose of relieving the bolts 3': from shearing stress and also more, positively positioning the grip member 28' longitudinally upon the link 33, a shim or a plurality of shims &9 may be placed between the adjacent end of the grip member and the upright flange of the link these shims preferably having depending, projections 59, at their ends for extending at the outer sides of the base of the link'33 so that accidental endwise-disengagement is avoided.

The reach rod ll extends through the hole 5| formed at the lower end of the plate 2%) and is pivotally connected at its'lower end to the lever 52 intermediate the ends of the latter. Thelever is floatingly mounted upon the bracket, it being pivotally connectedintermediate its ends to the lower end of the I link 53, the upper end or which is pivotally connected to the lower end of the bracket. The distance between the pivot connecting the reach rod to the lever? and the adjacent end of 1 the lever is preferably the same as the distance between the pivgct connecting" the floating, link to the lever and the adjacent-lend of the lever. To enable an operator on the floor to operate th'e'clamp', the'ends of the leverliz have secured'thereto the linear members 54, which are preferably tiller ropes, andthese linear members are provided at theirlowerends with the handles 55 which may bereadilygraspedbythe operator on the floor. The tiller" ropes are preferably guided on the inside of the door member or leaf by the keepers To support the lowerportions l5 of the cable so that they will extend substantiall uniformly in a horizontal direction, there are th supporting rollers 5Twhich areyielda-bly held' upwardly against the lower portions intermediate their ends; Each supporting roller is rotatably'mounted upon abracket 58 which is fixedly secured to an end of the spring leaf 59', the oppositeend of which may be' fixed1y secured to a head flangeof one of the T beams- I; or to the plate It. To avoid interference with a door member or leaf during its movement, th transverse part 21 of each bracket is formed at its free end with the downwardly extending guide portion 68 engagemember being eooperable with said grip portion to grip the linear member, a link pivotally mounted on said bracket, a reach rod, and a sec- 0nd link pivotally connected at its opposite ends to said grip member and reach rod and intermediate its ends to Said first mentioned link, the pivotal connection intermediate the ends of said second link being movable from one side to the 1 other of the line between the pivotal mounting for said first mentioned link and the pivotal con- 1 nection to said gripmember.

2. In a device for detachably gripping a. linear j member, a bracket having a grip portion engageable with the linear member, a grip member movable relative to said bracket and engageabie with the linear member, said grip member being cooperable with said grip portion to grip the linear member, and means carried, by said bracket for operating said grip member, said means comprisinga reach rod guided by said bracket and operatively connected to said grip member, and a lever carried by said bracket and pivotally connected intermediate its ends to said reach rod.

3. In a device for detachably gripping a linear,

member, a supporting member having a grip portion engageable with the linear member, a grip member mounted on and movable relative to said supporting member toward and away from said grip portion and engageable with the linear mem ber, amember for moving said grip member promeans carried by said supporting member for operating said moving member.

JULIUS I. BYRNE. 

